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Fragrance ingredient

ACETYLCYCLOPENTANONE

CAS 1670-46-8
62

Safety score · 0–100

Fine

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

A cyclic beta-diketone used as a fragrance ingredient with caramel and nutty notes. Used at low levels in perfumery with limited published safety data specific to cosmetics.

Skin benefits

  • Adds nutty caramel fragrance note
  • Used in low concentrations in perfumery
  • Stable in typical formula pH

Known concerns

  • Limited cosmetic safety dossier published
  • Beta-diketones can chelate metals causing stability issues
  • Possible mild skin irritation at higher levels

References

EU

EU CosIng database

European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.

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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve, so always read the physical product label and consult a healthcare professional for personal concerns.